If people had any idea what it takes to run an MMO, they'd know why it isn't free. It requires a dedicated team of knowledgeable (and highly paid) tech support personnel, a large (and less well paid) staff of customer service reps, coders and testers to deliver patches (and all decent MMOs release large, content laden patches on a regular basis), hardware and software investments and upkeep, and the most important expense of all- BANDWIDTH. Barrels and barrels of it. And that's all after you've developed a content-heavy game application.